In recent years, industrial and academic researches have experienced unprecedented changes related tothe concept of sustainable development. The choice of raw material, reactions, processes, andcharacterization of final products are constraining the industrials to rethink their production methods.This change can be accomplished by “the conception of chemical products and processes that reduceor eliminate the use and synthesis of hazardous materials.” The research work described in this thesisis focused on the development of new reducing systems using hydrosiloxanes as substitutes foraluminum and boron hydrides.In this context, several reducing systems based on the use of 1,1,3,3-tetramethyldisiloxane (TMDS)associated with a metal complex have been developed in the laboratory. Depending on the metal,selective reductions of various organic functions were performed. Thus, iron (III) acetylacetonate andTMDS allowed the reduction of aromatic nitro compounds; palladium on charcoal was used for thesynthesis of alcoxysiloxanes from oxygenated rings, alcohols or carbonyl compounds; esters were alsoreduced into alcohols by the action of a molybdenum or a vanadium complex; reduction of carboxylicacids as well as the cylization of dicarboxylic acids have been carried out using indium tribromide andthe latter complex also proved efficiency for the reduction of phosphine oxides derivatives